| Patent application number | Description | Published |
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| 20090275691 | METHOD FOR THE PRODUCTION OF CO-EXTRUDATES COMPOSED OF POLYSTYRENE AND OF A CROSSLINKED POLYVINYLPYRROLIDONE WITH REDUCED RESIDUAL STYRENE MONOMER CONTENT - A method for removing residual styrene monomers from co-extrudates comprising polystyrene and water-insoluble, crosslinked polyvinylpyrrolidone, which comprises subjecting an aqueous suspension of the particulate solid co-extrudate to a heat treatment at temperatures of 60 to 99° C., the weight ratio of solid co-extrudate to water in the suspension being 1:1.5 to 1:20, and the concentration of the suspension being kept constant during the treatment. | 11-05-2009 |
| 20090291164 | METHOD FOR REGENERATING AN AUXILIARY FILTERING AGENT - Processes comprising: (i) providing a filter aid comprising a co-extrudate of a water-insoluble polyvinylpyrrolidone and a thermoplastic polymer; (ii) treating the filter aid with aqueous alkali; (iii) subsequently treating the filter aid with an enzyme; and (iv) subsequently thereto carrying out a second treatment with aqueous alkali, to provide a regenerated filter aid, and uses therefor. | 11-26-2009 |
| 20100176069 | METHOD FOR REGENERATING A FILTER AID - Methods for regenerating filter aids which comprise inorganic, natural or semisynthetic filter aids. The method comprises subjecting the filter aid to a first treatment with an aqueous alkaline solution, treating the filter aid with enzymes, treating the filter aid with a surfactant, and subjecting the filter aid a second treatment with the aqueous alkaline solution. The enzyme treatment and the surfactant treatment steps may be carried out simultaneously or in any order. | 07-15-2010 |
| Patent application number | Description | Published |
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| 20080202396 | METHODS AND APPARATUSES FOR REMOVING MERCURY-CONTAINING MATERIAL FROM EMISSIONS OF COMBUSTION DEVICES, AND FLUE GAS AND FLYASH RESULTING THEREFROM - A method of removing mercury or mercury-containing material from flue gas produced by a coal-burning main furnace includes feeding coal, which contains mercury or mercury-containing material, to a main furnace which produces flue gas. The method further includes feeding the coal to an auxiliary burner which produces a slipstream of flyash, feeding the slipstream of flyash from the auxiliary burner into the flue gas produced by the main furnace, and introducing a mercury-active oxidant to the coal being fed to the auxiliary burner, the combustion air fed to the auxiliary burner, and/or the flyash. | 08-28-2008 |
| 20080223270 | METHOD OF USING NANOALLOY ADDITIVES TO REDUCE PLUME OPACITY, SLAGGING, FOULING, CORROSION AND EMISSIONS - A process for improving the operation of combustors includes the steps of burning a carbonaceous fuel in a combustor system and determining combustion conditions within the combustor system that can benefit from a targeted treatment additive, wherein the determinations are made by calculation including computational fluid dynamics and observation The process further includes locating introduction points in the combustor system where introduction of the targeted treatment additive could be accomplished. Based on the previous steps, a treatment regimen for introducing the targeted treatment additive to locations within the combustor system results in one or more benefits selected from the group consisting of reducing the opacity of plume, improving combustion, reducing slag, reducing LOI and/or unburned carbon, reducing corrosion, and improving electrostatic precipitator performance. The targeted treatment additive comprises an alloy represented by the following generic formula (A | 09-18-2008 |
| 20090071067 | Environmentally-Friendly Additives And Additive Compositions For Solid Fuels - Fuel additive packages and fuel compositions, suitable for use with solid fuels, having environmentally compatible characteristics as defined by European Council Directive 67/548/EEC is disclosed. Such additive packages and compositions may include components selected from non-persistent materials, non-bioaccumulative materials, and/or or non-toxic materials. | 03-19-2009 |
| 20100300929 | COMPOSITIONS AND METHODS FOR IMPROVING A CATALYTIC REFORMER - The present disclosure relates to a catalytic reformer system, including a feed stream to a catalytic reformer comprising naphtha and at least one manganese-containing compound. There is also disclosed a reformer catalyst. Methods of improving the reformer catalyst durability are also disclosed. | 12-02-2010 |
